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| author | Qiushi Wu <wu000273@umn.edu> | 2020-05-27 16:00:19 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-03 08:12:12 +0200 |
| commit | 2996897d8b9bf1b42919300f392a891b4f925480 (patch) | |
| tree | 9bbf0129fdf1fc9208743f53e283e6f6ffad4756 /drivers/iommu/iommu.c | |
| parent | e8457f2a32a427c56aa3724cdca4e472685303f0 (diff) | |
| download | linux-stable-2996897d8b9bf1b42919300f392a891b4f925480.tar.gz linux-stable-2996897d8b9bf1b42919300f392a891b4f925480.tar.bz2 linux-stable-2996897d8b9bf1b42919300f392a891b4f925480.zip | |
iommu: Fix reference count leak in iommu_group_alloc.
[ Upstream commit 7cc31613734c4870ae32f5265d576ef296621343 ]
kobject_init_and_add() takes reference even when it fails.
Thus, when kobject_init_and_add() returns an error,
kobject_put() must be called to properly clean up the kobject.
Fixes: d72e31c93746 ("iommu: IOMMU Groups")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Link: https://lore.kernel.org/r/20200527210020.6522-1-wu000273@umn.edu
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 589207176ffa..a1e7a73930fa 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -206,7 +206,7 @@ again: mutex_lock(&iommu_group_mutex); ida_remove(&iommu_group_ida, group->id); mutex_unlock(&iommu_group_mutex); - kfree(group); + kobject_put(&group->kobj); return ERR_PTR(ret); } |